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5-Bromothiophene-3-carboxylic acid

Also known as: 3-Thiophenecarboxylic acid, 5-bromo-, 5-Bromo-3-thiophenecarboxylic acid, 2-Bromothiophene-4-carboxylic acid

5-Bromothiophene-3-carboxylic acid (CAS 100523-84-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3BrO2S and a molecular weight of 207.045 g/mol. Key properties include a boiling point of 318.9±27.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 146.7±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
100523-84-0
Jingsj CID
J-1080625-4
Molecular Formula
C5H3BrO2S
Molecular Weight
207.045 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point318.9±27.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point146.7±23.7 °C
Exact Mass205.903702
PSA65.54000
LogP2.40
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.650

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Bromothiophene-3-carboxylic acid?

The CAS number of 5-Bromothiophene-3-carboxylic acid is 100523-84-0.

What are the molecular formula and molecular weight of 5-Bromothiophene-3-carboxylic acid?

5-Bromothiophene-3-carboxylic acid has molecular formula C5H3BrO2S and molecular weight 207.045 g/mol.

What are the upstream and downstream products of 5-Bromothiophene-3-carboxylic acid?

For 5-Bromothiophene-3-carboxylic acid, Upstream Products: Thiophene-3-carboxylic acid, Ethyl 5-bromothiophene-3-carboxylate, 5-Bromo-3-thiophenecarbaldehyde; Downstream Products: tert-Butyl N-(5-bromothiophen-3-yl)carbamate, 3-Thiophenemethanol, Ethyl 5-bromothiophene-3-carboxylate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-Bromothiophene-3-carboxylic acid (CAS 100523-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1080625-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.